Pneumatic window operating device



Sept.27,"1938. M. DlNco Eri-AL 2,131,618'

PNEUMATIC WINDOW OPERATING DEVICE Filed Allg. 9, 1937 gf/5 j L Z, l fives a/Zes mja y ATTORNEY Patented Sept. 27, 1938 2,131,613 n PNEUMATIC WINDOW OPERATING DEVICE Mario Dincc, Melvindale, Ernest Kornjathy, De-

troit, and Charles S. Komjathy, lnkster, Mich.

j Anppucatnm 1 Claim.

This invention relates to window operating devices, and its general object is to provide a pneumatic device of that character which is primarily designed for use with passenger vehicles, for individually operating the window thereof to closed and opened positions, and such can be accomplished by our device, merely by actuating valve means that is controlled by handled means conveniently arranged with respect to its window.

A further object is to provide a pneumatic device that is capable of being operated in an eilicient manner, with a minimum amount of compressed air, from a suitable source of supply, such as for instance from a pump operated by the motor of the Vehicle.

Another object is to provide a pneumatic win- Y dow operating device that is simple in construction, easy to install, inexpensive to manufacture, and extremely eicient in operation, use and service.

This invention also consists in certain other features of construction and in the combination and arrangement of the several parts, to be hereinafter fully described, illustrated in the accompanying drawing and specifically pointed out in the appended claim.

In describing the invention in detail, reference will be had to the accompanying drawing wherein like characters denote like or corresponding parts throughout the several views, and in which:

Figure 1 is a fragmentary view illustrating our device in use, with the parts arranged in full lines when in a position with the window open, and in dotted lines, with the window closed.

Figure 2 is a sectional view taken approximately on line 2-2 of Figure 1, looking in the direction of the arrows.

Figure 3 is a sectional view taken approximately on line 3-3 of Figure 1, looking in the direction of the arrows. l

Referring to the drawing indetail, the reference numeral I may indicate a door provided at its upper portion with a window opening, adapted to be closed by a sliding glass panel 2 mounted for movement in guideways 3 and limited in its downward movement by stops 4.

Fixed within the lower portion of the door I is a cylinder 5 that has mounted for slidable movement therein a plunger in the form of a piston 6 of a length to extend above the cylinder, and the lower end of the piston is provided with grooves having rings 1 mounted therein, that act as packing means, as will be apparent.

The upper end of the piston 6 is recessed to provide a reduced portion 8 and mounted in the 9 is the intermediate portion of a block August 9, 19377, Serial No. 158,204

recess, as well as xed to the reduced portion by securing means such as bolt and nut connections I0 Which isprovided with reduced end portions I I, the latter having secured thereto by bolt and nut connections I2, the lower ends of arms I3 that rise therefrom in diverging relation with respect to each other, as clearly shown in Figure l. The upper ends of the arms I3 have resting thereon the lower edge of the panel 2 .which is secured to ears I4 that are formed on and rise from the arms and securing means are shown as being bolt and nut 'connections I5.

From the foregoing, it will be seen that 4the piston is connected to the panel 2 through the instrumentality of the block and arms I3 so that upon movement of the piston the panel will be raised and lowered to closed and opened positions.

The piston'is moved upwardly by compressed air, and for that purpose, air is introduced in the bottom of the cylinder which is closed by a cap I6 threaded thereto, and the cap has an opening therein within which extends one end of a pipe line I1, the opposite end being secured to the body of a three-way valve I8, that includes a core rotatably mounted therein, with passageways movable for registration with a bleed port I9, an inlet port 20, and a port 2l for the pipe line I1. The port 20 has a pipe line 22 connected therein and which leads to a suitable source of air under pressure or to an air pump which may be operated by the pipe line 22 has a check valve 23 therein, for a purpose which will be presently described.

The Valve is actuated by a lever 24 that is secured to the core, and the lever is provided with a slot 25 longitudinally arranged therein for slidably receiving a pin 26 that is secured to and eX- tends laterally from an upright. lever 21 which is suitably guided'and has a knob 28 secured to the upper end thereof, providing a handle.

From the above description and disclosure of the drawing, it will be obvious that we vhave provided a pneumatic window operating device `for motor vehicles, and in the use thereof, the Valve is moved to the dotted line position to allow the compressed air to pass from the pipe line 22, through the valve and pipe line I1, to act upon the lower end of the piston 6, thereby resulting in the panel 2 being arranged to closed position, as shown in dotted lines. When it is desired to lower the window, the valve is moved to the full line position which will allow the air to escape through the bleed port, and the panel will drop motor of the vehicle, and the by gravity due to the weight thereof, together With the arms, block and piston. 'I'he panel is not only raised by compressed air, but is held in raised position by the air being trapped in the cylinder, pipe line I1, Valve I8 and that portion of the pipe line 22 between the valve I8 and check valve 23.

It is thought from the foregoingdescriptionthat the advantages and novel features of the invention will be readily apparent. Y

It is to be understood that changes may be made in the construction and in the combination and arrangement of the several parts, provided that such changes fall withinthe scope of the appended claim.

What we claim is:

A pneumatic device for raising and lowering a slidably mounted transparent closure-panel of a. vehicle window, and comprising a cylinderra piston slidably mounted in said cylinder and having a reduced upper end extending through the cylinder, a block secured to the reduced upper end and having reduced opposite ends, arms secured to the reduced opposite ends of the block and diverging therefrom, ears formed on the outer ends of the arms and xed to the panel with the latter resting upon the arms, means for conveying compressed air to the cylinder below the piston, and means for controlling the'passage of air through the conveying means to introduce air in the cylinder to raise and hold the panel in raised position, and to exhaust the air from the cylinder to allow the-panel to lower by the action of gravity.

MARIO DINCO. ERNEST KOMJATHY. CHARLES S. KOMJATHY. 

